Cryptography Tool
How This Website Works
This website is an interactive tool designed to demonstrate and educate users about three classic ciphers: Caesar, Substitution, and Vigenère. It allows you to encrypt and decrypt messages using these ciphers, providing a hands-on experience with fundamental cryptographic concepts.
The tool is built using HTML for structure, CSS for styling, and JavaScript for functionality. It dynamically updates the user interface and performs the encryption and decryption operations based on user input.
Encoding and Decoding Process
- Choose a Cipher: Select one of the three available ciphers from the dropdown menu.
- Set the Key or Mapping:
- For Caesar Cipher: Enter a numeric shift value.
- For Substitution Cipher: Use the provided interface to create a custom character mapping.
- For Vigenère Cipher: Enter a keyword.
- Input Text: Enter the text you want to encrypt or decrypt in the appropriate text area.
- Process the Text: Click the "Encrypt" or "Decrypt" button to process your input.
- View Results: The encrypted or decrypted text will appear in the output text area.
The website uses JavaScript to implement each cipher's algorithm:
- Caesar Cipher shifts each character by the specified amount.
- Substitution Cipher replaces each character according to the custom mapping.
- Vigenère Cipher uses the keyword to create a polyalphabetic substitution.
You can experiment with different inputs, keys, and ciphers to see how they affect the output. This hands-on approach helps in understanding the strengths and weaknesses of each cipher method.